Energy-saving and environment-friendly aramid cord dipping solution and rubber material

Abstract

The invention discloses an energy-saving and environment-friendly aramid cord thread dipping solution and a rubber material, and belongs to the technical field of dipping solutions. The gum dipping solution comprises a first-bath gum dipping solution and a second-bath gum dipping solution which are subpackaged; wherein the first-bath impregnation liquid is prepared from the following raw materials in parts by weight: 5 to 25 parts of blocked isocyanate, 2 to 15 parts of flexible polyfunctional epoxy resin and 100 parts of deionized water; the second-bath impregnation liquid comprises the following raw materials in parts by weight: 50-250 parts of latex, 5-25 parts of phenolic resin and 100 parts of deionized water; the energy-saving and environment-friendly aramid cord thread dipping solution has good water solubility and water dispersibility, is not easy to stick to a roller, is convenient to clean, does not contain extremely polluting components, and is environment-friendly. The adhesive property between an aramid fiber product (such as an aramid cord) treated by the impregnation liquid and a rubber matrix is excellent, and the durability of a rubber composite material is improved.

Description

Technical Field

[0001] The invention relates to the technical field of dipping solution, in particular to an energy-saving and environment-friendly aramid cord dipping solution and a rubber material. Background Art

[0002] With the rapid development of modern industry, rubber products have penetrated into the fields of high-end tires, special seals, hoses and cables for extreme environments, etc., especially fiber-rubber composite materials, which have become key structural and functional materials with their excellent performance. This type of composite material uses fiber materials as the composite skeleton, which not only significantly improves the mechanical strength and wear resistance of rubber products, but also gives the material new functions, such as high temperature resistance and chemical corrosion resistance, thereby broadening the application range of rubber products in industries such as automobiles, aerospace, construction and electronics.

[0003] Due to the significant differences in polarity and modulus between fibers and rubber, the interlayer interface bonding strength is low and it is not easy to bond. In order to enhance the bonding performance between traditional fibers and rubber, researchers have developed a resorcinol-formaldehyde-latex (RFL) bonding system, which not only has excellent bonding effect but also has high cost-effectiveness. However, during use, the two harmful chemicals, resorcinol and formaldehyde, will volatilize during the configuration and processing process, which not only poses a serious health threat to production workers, but may also cause long-term health risks to product users. Therefore, it has become particularly urgent to develop a new impregnation system to replace the traditional RFL impregnation system.

[0004] Aramid fiber, also known as aromatic polyamide fiber, is mainly classified into para-aramid (PPTA) and meta-aramid (PMIA). It is a high-performance synthetic fiber with excellent impact resistance and is not easy to break under high stress. Its stiffness is between that of glass fiber and carbon fiber, providing good mechanical properties and flexibility. It has excellent friction and chemical resistance, can resist most high-concentration inorganic acids, and has good alkali resistance. It is widely used in various aspects of the national economy, such as national defense, aerospace, electromechanical, construction, automobiles, and sporting goods.

[0005] Aramid cord is a cord material made of high-strength aramid fiber, which is light and soft, easy to clean, good in shielding, anti-static and antibacterial. Aramid cord is mainly used for curtains and partitions in homes and commercial places, and can create an elegant, modern and simple decorative style. In addition, it is also commonly used for partitions in commercial places, hanging of exhibition supplies and interior decoration.

[0006] However, due to the high surface crystallinity, low surface energy and high chemical inertness of aramid fibers, the composite interface interaction between aramid cord and rubber matrix is ​​weak, and traditional dipping solutions cannot meet the requirements of interfacial bonding strength, resulting in low shear strength of products and easy failure of components such as delamination and cracking during use. This limits the performance of aramid skeleton materials in rubber products.

[0007] Therefore, in order to improve the adhesion between aramid cord and rubber matrix, it is particularly important to develop matching surface treatment technology and special dipping solution. Summary of the invention

[0008] In view of this, the technical problem to be solved by the present invention is to provide an energy-saving and environmentally friendly aramid cord dipping solution and a rubber material. The energy-saving and environmentally friendly aramid cord dipping solution has good water solubility and water dispersibility, does not contain highly polluting components, and has excellent bonding performance between aramid fibers and rubber matrix after being treated with the solution.

[0009] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0010] The present invention provides a dipping solution, including a first-bath dipping solution and a second-bath dipping solution which are packaged separately;

[0011] The raw materials of the one-bath dipping solution include 5 to 25 parts of blocked isocyanate, 2 to 15 parts of flexible multifunctional epoxy resin, and 100 parts of deionized water, by weight.

[0012] The raw materials of the second bath dipping solution include 50-250 parts of latex, 5-25 parts of phenolic resin and 100 parts of deionized water;

[0013] The blocked isocyanate is prepared by subjecting an isocyanate to a blocking reaction with a blocking agent, wherein the blocking agent is selected from one or more of an oxime blocking agent, a phenol blocking agent, an amine blocking agent, and an imidazole blocking agent;

[0014] The flexible multifunctional epoxy resin is selected from one or more of isosorbide-based epoxy resin, biophenol-based epoxy resin, rosin-based epoxy resin, and lignin-based epoxy resin;

[0015] The latex is selected from one or more of natural latex, styrene butadiene latex, polybutadiene latex, butyl pyrrolidone latex, carboxyl styrene butadiene latex, and sulfonic acid polystyrene latex;

[0016] The raw material phenol of the phenolic resin is selected from one or more of tannin, cardanol, tert-butylphenol, octylphenol and dodecylphenol;

[0017] The raw material aldehyde of the phenolic resin is selected from one or more of furfural, pyridine-2-carboxaldehyde and glyoxal.

[0018] In parts by weight, preferably, the blocked isocyanate is 5 to 20 parts; more preferably 5 parts, 10 parts, 15 parts or 20 parts.

[0019] Preferably, the flexible multifunctional epoxy resin is 2 parts, 6 parts, 10 parts or 15 parts.

[0020] Preferably, the latex is 50 to 200 parts; more preferably 50 parts, 100 parts or 200 parts.

[0021] Preferably, the phenolic resin is 5 parts, 15 parts or 25 parts.

[0022] Preferably, the isocyanate is selected from one or more of toluene diisocyanate, diphenylmethane diisocyanate, hexamethylene diisocyanate and isophorone diisocyanate.

[0023] Preferably, the oxime blocking agent is selected from methyl ethyl ketoxime;

[0024] Preferably, the phenolic blocking agent is selected from 2-hydroxypyridine or 5-chloro-2-hydroxypyridine;

[0025] Preferably, the amine blocking agent is selected from one or more of acetanilide, N-methylacetamide, and methacrylamide;

[0026] Preferably, the imidazole blocking agent is selected from one or more of 2-methylimidazole, 2-ethylimidazole, and 2-isopropylimidazole.

[0027] Preferably, the isosorbide type epoxy resin is selected from isosorbide glycidyl ether type epoxy resin and diisosorbide glycidyl ether type epoxy resin;

[0028] Preferably, the biophenol-based epoxy resin is selected from one or more of eugenol-based epoxy resin, divanillyl diglycidyl ether epoxy resin, divanillyl triglycidyl ether epoxy resin, and divanillyl tetraglycidyl ether epoxy resin.

[0029] Preferably, the raw material of the blocked isocyanate is selected from toluene diisocyanate and methyl ethyl ketoxime;

[0030] Alternatively, preferably, the raw material of the blocked isocyanate is selected from diphenylmethane diisocyanate and 2-hydroxypyridine;

[0031] Alternatively, preferably, the raw material of the blocked isocyanate is selected from hexamethylene diisocyanate and methacrylamide;

[0032] Alternatively, preferably, the raw material of the blocked isocyanate is selected from isophorone diisocyanate and 2-methylimidazole.

[0033] Preferably, the flexible multifunctional epoxy resin is selected from isosorbide-based glycidyl ether epoxy resin, rosin-based epoxy resin, lignin-based epoxy resin or divanillyl diglycidyl ether epoxy resin.

[0034] Preferably, the latex is selected from a mixture of butylpyrrolidone latex and carboxylated styrene butadiene latex, a mixture of butylpyrrolidone latex and polybutadiene latex, or a mixture of carboxylated styrene butadiene latex and polybutadiene latex.

[0035] Preferably, the raw material phenol of the phenolic resin is selected from cardanol, octylphenol or dodecylphenol;

[0036] Preferably, the raw material aldehyde of the phenolic resin is selected from pyridine-2-carboxaldehyde or furfural.

[0037] In the present invention, the preparation method of the one-bath dipping solution comprises the following steps:

[0038] Mix the blocked isocyanate with a portion of deionized water, add the flexible multifunctional epoxy resin while stirring to obtain a mixture, and then add another portion of deionized water to obtain a one-bath dipping solution.

[0039] The preparation method of the two-bath dipping solution comprises the following steps:

[0040] (1) putting an appropriate amount of deionized water into a reaction kettle, adding solid sodium hydroxide to prepare a solution with a concentration of 3% to 5%, adding phenol into the reaction kettle in small amounts for multiple times, then adding aldehyde and catalyst triethylamine to react to obtain a reaction solution; adding deionized water and latex into a preparation tank and mixing them evenly to obtain a preparation system;

[0041] (2) Adding the above reaction solution into the above preparation system in batches and mixing evenly to obtain a second bath dipping solution.

[0042] The phenol in step (1) is selected from one or more of tannin, cardanol, tert-butylphenol, octylphenol and dodecylphenol.

[0043] The aldehyde in step (1) is selected from one or more of furfural, pyridine-2-carboxaldehyde and glyoxal.

[0044] The latex in step (1) is selected from one or more of natural latex, styrene-butadiene latex, polybutadiene latex, butylpyrrolidone latex, carboxyl styrene-butadiene latex, and sulfonic acid polystyrene latex.

[0045] The latex is selected from a single latex or a composite latex.

[0046] The composite latex is preferably a mixture of butadiene pyrrolidone latex and carboxylated styrene butadiene latex, a mixture of butadiene pyrrolidone latex and polybutadiene latex, or a mixture of carboxylated styrene butadiene latex and polybutadiene latex.

[0047] The reaction temperature in step (1) is 22-28°C.

[0048] In the step (1), the stirring speed in the reactor is controlled at 350±30 rpm, and the reaction time is 2±0.5 hours.

[0049] The preparation methods of the one-bath dipping solution and the two-bath dipping solution are simple, efficient, highly repeatable, cost-saving, and easy for large-scale industrial production.

[0050] The present invention performs dipping treatment on aramid fiber products by using a dipping solution obtained by combining a single-bath dipping solution and a double-bath dipping solution, thereby maintaining the original high strength and high modulus properties of the aramid cord, enhancing the bonding force between the aramid cord and the matrix material, and improving the durability of the composite material.

[0051] The flexible multifunctional epoxy resin component in the dipping solution of the present invention forms a film on the surface of the aramid fiber after curing, which significantly improves the mechanical interlocking between the aramid fiber and the matrix, thereby improving the mechanical properties and fatigue resistance of the aramid fiber.

[0052] Furthermore, the present invention uses low-temperature deblocking isocyanate when performing the dipping treatment on the aramid cord, so that the dipping solution can achieve effective bonding of the aramid fiber at a relatively low temperature.

[0053] The present invention also provides a rubber material, the raw materials of which include a rubber matrix and aramid cords treated with the above-mentioned dipping solution.

[0054] Preferably, the H-type extraction force between the rubber matrix and the aramid cord in the rubber material is 181-236 N / cm.

[0055] Compared with the prior art, the energy-saving and environment-friendly aramid cord dipping solution provided by the present invention comprises a one-bath dipping solution and a two-bath dipping solution which are separately packaged; wherein, by weight, the raw materials of the one-bath dipping solution comprise 5 to 25 parts of blocked isocyanate, 2 to 15 parts of flexible multifunctional epoxy resin, and 100 parts of deionized water; the raw materials of the two-bath dipping solution comprise 50 to 250 parts of latex, 5 to 25 parts of phenolic resin, and 100 parts of deionized water; the blocked isocyanate is prepared by blocking the isocyanate with a blocking agent, and the blocking agent is selected from oxime blocking agents, phenol blocking agents, amine blocking agents, imidazole blocking agents, etc. One or more of the following sealing agents; the flexible multifunctional epoxy resin is selected from one or more of isosorbide epoxy resin, biophenol-based epoxy resin, rosin-based epoxy resin, and lignin-based epoxy resin; the latex is selected from one or more of natural latex, styrene-butadiene latex, polybutadiene latex, butyl pyrrolidone latex, carboxyl styrene-butadiene latex, and sulfonic acid polystyrene latex; the raw material phenol of the phenolic resin is selected from one or more of tannin, cardanol, tert-butylphenol, octylphenol, and dodecylphenol; the raw material aldehyde of the phenolic resin is selected from one or more of furfural, pyridine-2-carboxaldehyde, and glyoxal. The energy-saving and environmentally friendly aramid cord dipping solution of the present invention has good water solubility and water dispersibility, is not easy to stick to the roller, is easy to clean, does not contain highly polluting components, and is environmentally friendly. The aramid fiber products (such as aramid cords) treated with the dipping solution have excellent bonding performance with the rubber matrix, which improves the durability of the rubber composite material. DETAILED DESCRIPTION

[0056] In order to further illustrate the present invention, the energy-saving and environment-friendly aramid cord dipping solution and a rubber material provided by the present invention are described in detail below in conjunction with embodiments.

[0057] Example 1

[0058] One-bath dipping solution for preparing energy-saving and environment-friendly aramid cord

[0059] Add 5 parts of blocked isocyanate (wherein the isocyanate is toluene diisocyanate and the blocking agent is methyl ethyl ketoxime) to 50 parts of deionized water and mix, add 2 parts of flexible multifunctional epoxy resin (i.e., isosorbide glycidyl ether type epoxy resin) while stirring at a stirring speed of 400 rpm to obtain a mixture, and then add another 50 parts of deionized water to mix to obtain a one-bath dipping solution.

[0060] Example 2

[0061] One-bath dipping solution for preparing energy-saving and environment-friendly aramid cord

[0062] Add 10 parts of blocked isocyanate (wherein the isocyanate is diphenylmethane diisocyanate and the blocking agent is 2-hydroxypyridine) to 40 parts of deionized water and mix, add 6 parts of flexible multifunctional epoxy resin (rosin-based epoxy resin) while stirring at a stirring speed of 380 rpm to obtain a mixture, and then add another 60 parts of deionized water to mix to obtain a one-bath dipping solution.

[0063] Example 3

[0064] One-bath dipping solution for preparing energy-saving and environment-friendly aramid cord

[0065] 15 parts of blocked isocyanate (wherein the isocyanate is hexamethylene diisocyanate and the blocking agent is methacrylamide) are added to 60 parts of deionized water and mixed, and 10 parts of flexible multifunctional epoxy resin (i.e., lignin-based epoxy resin) are added while stirring at a stirring speed of 410 rpm to obtain a mixture, and another 40 parts of deionized water are added to obtain a one-bath dipping solution.

[0066] Example 4

[0067] One-bath dipping solution for preparing energy-saving and environment-friendly aramid cord

[0068] Add 20 parts of blocked isocyanate (isocyanate is isophorone diisocyanate, and blocking agent is 2-methylimidazole) to 80 parts of deionized water, mix, add 15 parts of flexible multifunctional epoxy resin (i.e., divanillyl diglycidyl ether) while stirring at a stirring speed of 420 rpm to obtain a mixture, and then add another 20 parts of deionized water to mix to obtain a one-bath dipping solution.

[0069] Example 5

[0070] Preparation of energy-saving and environment-friendly aramid cord with two-bath dipping solution

[0071] An appropriate amount of deionized water is placed in a reactor, sodium hydroxide is added to form a solution with a concentration of 3%, and cardanol is added to the reactor in small amounts and multiple times, followed by furfural and catalyst triethylamine. At the same time, the temperature in the reactor is controlled to be maintained at 22°C, the stirring speed in the reactor is controlled at 350rpm, and the reaction time is 2 hours. After the reaction is completed, 100 parts of deionized water and 50 parts of a composite latex of butyl pyrrolidone latex and carboxyl styrene butadiene latex are added to the mixing tank successively, and after stirring evenly, 15 parts of the liquid in the reactor (i.e., the generated phenolic resin) are added to the mixing system in batches, and stirring is continued for 1.5 hours to obtain a two-bath dipping solution.

[0072] Example 6

[0073] Preparation of energy-saving and environment-friendly aramid cord with two-bath dipping solution

[0074] An appropriate amount of deionized water is put into a reactor, sodium hydroxide is added to be configured to a solution with a concentration of 4%, dodecylphenol is added to the reactor in small quantities for multiple times, pyridine-2-carboxaldehyde and catalyst triethylamine are added afterwards, and the temperature in the reactor is controlled to remain at 24°C, and the stirring speed in the reactor is controlled at 340rpm for a reaction time of 1.8 hours. After the reaction is completed, 100 parts of deionized water and 100 parts of a composite latex of butyl pyrrolidone latex and carboxyl styrene butadiene latex are successively added to a blending tank, and after stirring, 25 parts of the liquid in the reactor (i.e., the generated phenolic resin) are added to the blending system in batches, and stirring is continued for 1.4 hours to obtain a two-bath dipping solution.

[0075] Example 7

[0076] Preparation of energy-saving and environment-friendly aramid cord with two-bath dipping solution

[0077] An appropriate amount of deionized water was put into a reactor, sodium hydroxide was added to form a solution with a concentration of 5%, and cardanol was added to the reactor in small amounts for multiple times, followed by addition of pyridine-2-carboxaldehyde and catalyst triethylamine, while the temperature in the reactor was controlled to be maintained at 27°C, the stirring speed in the reactor was controlled at 360rpm, and the reaction time was 2.2 hours. After the reaction was completed, 100 parts of deionized water and 200 parts of a composite latex of butyl pyrrolidone latex and carboxyl styrene butadiene latex were added to the mixing tank successively, and after stirring evenly, 5 parts of the liquid in the reactor (i.e., the generated phenolic resin) were added to the mixing system in batches, and stirring was continued for 1.6 hours to obtain a two-bath dipping solution.

[0078] Comparative Example 1

[0079] Preparation of traditional dip

[0080] Put an appropriate amount of deionized water into a reactor, add sodium hydroxide to make a solution with a concentration of 5%, add an appropriate amount of resorcinol into the reactor, then add formaldehyde, and control the temperature in the reactor to maintain at 25°C, the stirring speed in the reactor to be controlled at 360rpm, and the reaction time is 8 hours. After the reaction is completed, add an appropriate amount of deionized water and styrene-butadiene latex to the mixing tank, stir evenly, add an appropriate amount of the liquid in the reactor to the mixing system in batches, and continue stirring for 3 hours to obtain a traditional resorcinol-formaldehyde-latex type dipping solution.

[0081] Comparative Example 2

[0082] Preparation of traditional dipping: put an appropriate amount of deionized water into a reactor, add sodium hydroxide to make a solution with a concentration of 10%, add an appropriate amount of resorcinol into the reactor, then add formaldehyde, and control the temperature in the reactor to maintain at 25°C, the stirring speed in the reactor is controlled at 360rpm, and the reaction time is 6 hours. After the reaction is completed, add an appropriate amount of deionized water and styrene-butadiene latex to the mixing tank, stir evenly, add an appropriate amount of the liquid in the reactor to the mixing system in batches, and continue stirring for 1.5 hours to obtain a traditional resorcinol-formaldehyde-latex dipping solution.

[0083] Performance test

[0084] The dipping solutions obtained in Examples 1-7 were randomly combined to obtain Application Examples 1-12. The aramid cord was then dipped with the combined dipping solutions of Application Examples 1-12 to obtain a modified aramid cord. Finally, the H-type extraction force between the modified aramid cord and the bionic synthetic rubber was further tested, and the results are shown in Table 1.

[0085] Table 1 Results of H-type extraction force between modified aramid cord and bionic synthetic rubber in different application examples

[0086]

[0087] Note: H-type pull-out force is a measure of the bond strength between aramid cord and rubber and can be determined by the cord H test

[0088] The experimental results in Table 1 show that by testing the H-type extraction force between the aramid cord modified by the dipping solution of the present invention and the bionic synthetic rubber, it is found that the H-type extraction force reaches 181-236N / cm. This new dipping solution has achieved significant improvement in performance and successfully solved the problem of insufficient bonding performance in the traditional dipping system. The dipping solution of the present invention can not only meet the needs of most application scenarios, but also has a simple and easy preparation process, relatively small impact on the environment, and has environmental protection characteristics, and can replace the traditional resorcinol-formaldehyde-latex dipping solution to a certain extent.

[0089] The above embodiments are only used to help understand the method and core idea of ​​the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An energy-saving and environment-friendly aramid cord dipping solution, characterized in that: Including packaged one-bath dipping solution and two-bath dipping solution; The raw materials of the one-bath dipping solution include 5 to 25 parts of blocked isocyanate, 2 to 15 parts of flexible multifunctional epoxy resin, and 100 parts of deionized water, by weight. The raw materials of the second bath dipping solution include 50-250 parts of latex, 5-25 parts of phenolic resin and 100 parts of deionized water; The blocked isocyanate is prepared by subjecting an isocyanate to a blocking reaction with a blocking agent, wherein the blocking agent is selected from one or more of an oxime blocking agent, a phenol blocking agent, an amine blocking agent, and an imidazole blocking agent; The flexible multifunctional epoxy resin is selected from one or more of isosorbide-based epoxy resin, biophenol-based epoxy resin, rosin-based epoxy resin, and lignin-based epoxy resin; The latex is selected from one or more of natural latex, styrene butadiene latex, polybutadiene latex, butyl pyrrolidone latex, carboxyl styrene butadiene latex, and sulfonic acid polystyrene latex; The raw material phenol of the phenolic resin is selected from one or more of tannin, cardanol, tert-butylphenol, octylphenol and dodecylphenol; The raw material aldehyde of the phenolic resin is selected from one or more of furfural, pyridine-2-carboxaldehyde and glyoxal.

2. The energy-saving and environment-friendly aramid cord dipping solution according to claim 1, characterized in that: The isocyanate is selected from one or more of toluene diisocyanate, diphenylmethane diisocyanate, hexamethylene diisocyanate and isophorone diisocyanate.

3. The energy-saving and environment-friendly aramid cord dipping solution according to claim 1, characterized in that: The oxime blocking agent is selected from methyl ethyl ketoxime; The phenolic blocking agent is selected from 2-hydroxypyridine or 5-chloro-2-hydroxypyridine; The amine blocking agent is selected from one or more of acetanilide, N-methylacetamide, and methacrylamide; The imidazole blocking agent is selected from one or more of 2-methylimidazole, 2-ethylimidazole and 2-isopropylimidazole.

4. The energy-saving and environment-friendly aramid cord dipping solution according to claim 1, characterized in that: The isosorbide type epoxy resin is selected from isosorbide glycidyl ether type epoxy resin and diisosorbide glycidyl ether type epoxy resin; The biophenol-based epoxy resin is selected from one or more of eugenol-based epoxy resin, divanillyl diglycidyl ether epoxy resin, divanillyl triglycidyl ether epoxy resin, and divanillyl tetraglycidyl ether epoxy resin.

5. The energy-saving and environment-friendly aramid cord dipping solution according to claim 1, characterized in that: The raw material of the blocked isocyanate is selected from toluene diisocyanate and methyl ethyl ketoxime; Alternatively, the raw material of the blocked isocyanate is selected from diphenylmethane diisocyanate and 2-hydroxypyridine; Alternatively, the raw material of the blocked isocyanate is selected from hexamethylene diisocyanate and methacrylamide; Alternatively, the raw material of the blocked isocyanate is selected from isophorone diisocyanate and 2-methylimidazole.

6. The energy-saving and environment-friendly aramid cord dipping solution according to claim 5, characterized in that: The flexible multifunctional epoxy resin is selected from isosorbide-based glycidyl ether epoxy resin, rosin-based epoxy resin, lignin-based epoxy resin or divanillyl diglycidyl ether epoxy resin.

7. The energy-saving and environment-friendly aramid cord dipping solution according to claim 6, characterized in that: The latex is selected from a mixture of butylpyrrolidone latex and carboxylated styrene butadiene latex, a mixture of butylpyrrolidone latex and polybutadiene latex, or a mixture of carboxylated styrene butadiene latex and polybutadiene latex.

8. The energy-saving and environment-friendly aramid cord dipping solution according to claim 7, characterized in that: The raw material phenol of the phenolic resin is selected from cardanol, octylphenol or dodecylphenol; The raw material aldehyde of the phenolic resin is selected from pyridine-2-carboxaldehyde or furfural.

9. A rubber material, characterized in that: The raw materials include a rubber matrix and aramid cords treated with the energy-saving and environment-friendly aramid cord dipping solution as claimed in any one of claims 1 to 8.

10. The rubber material according to claim 9, characterized in that: The H-type extraction force between the rubber matrix and the aramid cord in the rubber material is 181-236 N / cm.

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